PID design for reliable closedloop control The upgraded driver includes a heat sink to improve reliability and a current sensing circuit to enable a precise PID closedloop design. It is specially designed for coreless motors. Switch design for fast and smooth response This board uses a speed switch with a 200 kHz PWM frequency. The MOSFET driver chip provides builtin hardware braking and power feedback for better control and safety. energy efficiency and protection The speed controller can tolerate current overloads and includes a brake function for rapid motor stopping. It uses MOSFETs with very low internal resistance and features dead zone control to minimize switching losses and improve overall power utilization. Working voltage and compatibility Input voltage range: 315V. If you use a power source below 12V, the board remains effective. It can operate even when a 12V battery is as low as 3V. Suitable for ordinary DC motors and coreless motors. Applications and use scenarios Coreless motor projects requiring precise speed control and reliable operation, such as compact robotics and micro automation. Batterypowered RC devices or small drones where fast switching and braking improve performance and safety. Educational robotics and hobby projects that benefit from an integrated PID closedloop driver with efficient power use and broad voltage compatibility.